Henry e



(No Model.)

1-1. E. RUSSELL, Jr.

SIGNAL BELL. No. 373,416. Patented Nov. 15, 1887.

N. PETERS. Phewfmhognphar, wamngeon. Il4 C.

UNITED STATES PATENT OFFICE.

HENRY E. RUSSELL, JR, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THERUSSELL St ERWIN MANUFACTURING COMPANY, OF SAME PLACE.

SIGNAL-BELL.

SPECIFICATION forming part of Letters Patent No. 373,416, dated November15, 1887.

(No model.)

.To aZZ whom, it may concern: y

Be it known that I, HENRY E. RUSSELL, Jr., a citizen of the UnitedStates, residing at New Britain, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inSignal-Bells, of which the following is a specification.

My invention relates to improvements in signal-bells of the class inwhich the bell is struck by a spring-pressed hammer; and the objects ofmy improvement are simplicity and economy of construction and to provideasimple and efficient mechanism for imparting a double stroke to thehammer for every reciprocating movement of the operating-rod.

In the accompanying drawings, Figure l is a vertical section, partly inelevation, of my bell, the plane of section being indicated by the linew w, Fig. 3. Said figure also represents in section a portion of thedoor to which the bell is attached. Fig. 2 is a horizontal section ofthe same, partly in elevation, the plane of section being taken on linex x of Fig. 1. Fig. 3 is mainly an elevation looking upon the inside ofthe gong, the frame or standard and operating-rod being shown in sectionon the line y y of Fig. l; and Fig. 4-is a detached view, the same beinga section on the line z z of Fig. 2.

A designates the door or siding uponwhich the bell is mounted, and B thebase for securing the bell to said door. Extending from one edge of thebase B and at right angles thereto is the plate-like frame or standardC, at one edge of which standard there is an angular arm, a, withinwhich is the screw-post b, on which the gong D is mounted and secured inplace by the nut d. The base B, the plate-like frame or standard C, andthe angular arm a are all blanked out in a single piece of sheet metaland bent into the form shown.

E designates the tubular socket, preferably formed of sheet metal andprovided with a side extension, e, by which it is secured to theplate-like frame C, so as to bring the body of the socket in axialalignment with the gong D. Within this socket is a spiral spring, f, oneend of which rests against the arm a, while the other end surrounds theend of the operside of the socket E-the side toward the frame C--isslotted for a short distance, in order to give free movement to thetrip-pin g.

Upon the plate-like frame C, I pivot the hammer-lever H, the body ot'which lever is extended to one side ofthe slot L and parallel thereto,as shown in Fig. 4. The hammer m is also secured to said hammer-lever. Aspring, n, is secured to the post or stud, by which the hammer-lever His pivoted and presses upon said hammer-lever to hold it in the positionshown. Upon the pivot o, Figs. 1 and 4, I secure a three-armedtripping-lever, I, with one edge resting against the edge of thehammer-lever H. This tripping-lever has two of its arms, 2 and 3,substantially in alignment with each other, with the arm 3 extendingfarther from the pivot, or, in other words, longer than the arm 2. Thetripping-arm 4 stands at right angles to the arms 2 and 3, and isbeveled alike on both sides and has its end projecting partly over thesloth, and conscquently into the path of the trip-pin g.

By pushing upon the operating-rod F in a direction to compress thespringf, the trippin g strikes the tripping-arm 4 of the tripping-leverI, and presses the short arm 2against the hammer-lever H and moves thesame in a direction to draw the hammer away from the gong. As soon asthe trip-pin g passes the trippingarm 4, the spring n throws the parts HI into their normal position, thereby imparting one stroke to the gong.Upon the operating rod being released the spring f forces it into itsformer position, and in doing so the trip-pin g strikes the tripping-arm4, thereby impinging the long arm 3 against the hammer-lever H andmoving it against its spring. As soon as the pin g passes the arm 4, thespring u returns the parts H I and imparts another stroke of the hammerto the gong. By making the arms 2 and 3 of the tripping-lever of theproper relative length,

IOO

the hammer m will have the samellength of resting against the other twoarms of said vstroke for either movement; of theoperatjingtripping-1ever I, said hammer-lever having rod. the hammer m,and the spring for returning I claim as my inventionsaid hammer-lever,substantially as described, 5 In a signal-bell', the c ombination oftihe 0pand for the purpose specified. erablng-rod having a trip-pin, g,a sprlng for HENRY E; RUSSELL JE moving said rod in one direction, athreel armed tripping-lever, I, pivoted on a fixed Witnesses: i

axis with one arm in the path of said trip-pin, M. S. WI ARD, lo thepivoted hammer-lever H, with one edge R. G. DUVALL.

